/*
 * 版权所有 (C) 2015 知启蒙(ZHIQIM) 保留所有权利。[遇见知启蒙，邂逅框架梦]
 * 
 * https://zhiqim.org/project/zhiqim_framework/zhiqim_httpd.htm
 *
 * Zhiqim Httpd is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
package org.zhiqim.httpd.constants;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.zhiqim.httpd.HttpdConstants;

import org.zhiqim.kernel.util.Resources;
import org.zhiqim.kernel.util.Validates;

/**
 * HTTP协议中MIME类型定义
 *
 * @version v1.0.0 @author zouzhigang 2014-3-21 新建与整理
 */
public class HttpMimeType implements HttpdConstants
{
    private static Properties p = null;
    
    static
    {
        if (p == null)
        {
            p = new Properties();
            InputStream in = Resources.getResourceStream(HttpMimeType.class, _PATH_MIME_PROPERTIES_);
            try{p.load(in);}catch (IOException e){}
        }
    }
    
    public static String getResourceMimeType(String fileExt)
    {
        if (Validates.isEmptyBlank(fileExt))
            return _APPLICATION_OCTET_STREAM_;
        
        String mimeType = (String)p.get(fileExt);
        if (mimeType == null)
            return _APPLICATION_OCTET_STREAM_;
        
        return mimeType;
    }
}
